diff --git a/modules/abstract-substrate/src/abstractSubstrateCoin.ts b/modules/abstract-substrate/src/abstractSubstrateCoin.ts
index 728eab274a..0bfab281b2 100644
--- a/modules/abstract-substrate/src/abstractSubstrateCoin.ts
+++ b/modules/abstract-substrate/src/abstractSubstrateCoin.ts
@@ -5,7 +5,6 @@ import {
   EDDSAMethods,
   EDDSAMethodTypes,
   KeyPair,
-  MethodNotImplementedError,
   MPCAlgorithm,
   MPCConsolidationRecoveryOptions,
   MPCRecoveryOptions,
@@ -20,7 +19,9 @@ import {
   ParseTransactionOptions,
   RecoveryTxRequest,
   SignedTransaction,
-  VerifyAddressOptions,
+  TssVerifyAddressOptions,
+  UnexpectedAddressError,
+  verifyEddsaTssWalletAddress,
   VerifyTransactionOptions,
 } from '@bitgo/sdk-core';
 import { CoinFamily, BaseCoin as StaticsBaseCoin } from '@bitgo/statics';
@@ -110,8 +111,18 @@ export class SubstrateCoin extends BaseCoin {
   }
 
   /** @inheritDoc **/
-  isWalletAddress(params: VerifyAddressOptions): Promise<boolean> {
-    throw new MethodNotImplementedError();
+  async isWalletAddress(params: TssVerifyAddressOptions): Promise<boolean> {
+    const isValid = await verifyEddsaTssWalletAddress(
+      params,
+      (addr) => this.isValidAddress(addr),
+      (pubKey) => this.getAddressFromPublicKey(pubKey)
+    );
+
+    if (!isValid) {
+      throw new UnexpectedAddressError(`address validation failure: ${params.address} is not a wallet address`);
+    }
+
+    return true;
   }
 
   /** @inheritDoc **/
diff --git a/modules/sdk-coin-tao/test/unit/tao.ts b/modules/sdk-coin-tao/test/unit/tao.ts
index ce5411187e..4d00533d70 100644
--- a/modules/sdk-coin-tao/test/unit/tao.ts
+++ b/modules/sdk-coin-tao/test/unit/tao.ts
@@ -11,6 +11,15 @@ describe('Tao:', function () {
   let bitgo: TestBitGoAPI;
   let baseCoin;
 
+  // Test data from wallet 694042b5efbee757e47ec2771cf58a45
+  const isWalletAddressTestData = {
+    commonKeychain:
+      '6e2235aee215f3909b42bf67c360f5bc6ba7087cbf0ed5ba841dd044ae7c3051722f9be974e8e79fa6c4c93d109dbc618672e36571925df0b5a7c5b015bcd382',
+    rootAddress: '5GU55E8X2YVSpd4LApeJR5RsXwQ8AnPdjM37Qz1drLTKh7as',
+    receiveAddress: '5EN6LFnhFRtWiwZfFncqBxaNUabTASKnSxoDt2zQvpVX4qVy',
+    receiveAddressIndex: 1,
+  };
+
   before(function () {
     bitgo = TestBitGo.decorate(BitGoAPI, { env: 'mock' });
     bitgo.safeRegister('tao', Tao.createInstance);
@@ -19,6 +28,84 @@ describe('Tao:', function () {
     baseCoin = bitgo.coin('ttao') as Ttao;
   });
 
+  describe('isWalletAddress', function () {
+    it('should verify root address (index 0)', async function () {
+      const keychains = [
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+      ];
+
+      const result = await baseCoin.isWalletAddress({
+        address: isWalletAddressTestData.rootAddress,
+        keychains,
+        index: 0,
+      });
+
+      result.should.be.true();
+    });
+
+    it('should verify receive address (index > 0)', async function () {
+      const keychains = [
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+      ];
+
+      const result = await baseCoin.isWalletAddress({
+        address: isWalletAddressTestData.receiveAddress,
+        keychains,
+        index: isWalletAddressTestData.receiveAddressIndex,
+      });
+
+      result.should.be.true();
+    });
+
+    it('should throw for address mismatch', async function () {
+      const keychains = [
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+      ];
+
+      await baseCoin
+        .isWalletAddress({
+          address: isWalletAddressTestData.receiveAddress,
+          keychains,
+          index: 0, // Wrong index for this address
+        })
+        .should.be.rejectedWith(
+          `address validation failure: ${isWalletAddressTestData.receiveAddress} is not a wallet address`
+        );
+    });
+
+    it('should throw for invalid address', async function () {
+      const keychains = [
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+        { commonKeychain: isWalletAddressTestData.commonKeychain },
+      ];
+
+      await baseCoin
+        .isWalletAddress({
+          address: 'invalidaddress',
+          keychains,
+          index: 0,
+        })
+        .should.be.rejectedWith('invalid address: invalidaddress');
+    });
+
+    it('should throw for missing keychains', async function () {
+      await baseCoin
+        .isWalletAddress({
+          address: isWalletAddressTestData.rootAddress,
+          keychains: [],
+          index: 0,
+        })
+        .should.be.rejectedWith('missing required param keychains');
+    });
+  });
+
   describe.skip('Recover Transactions:', function () {
     const sandBox = sinon.createSandbox();
     const recoveryDestination = '5FJ18ywfrWuRifNyc8aPwQ5ium19Fefwmx18H4XYkDc36F2A';